Sucker-rod elevator



. Aug; 27, 1929, o. c. NEEDHAM SUCKER ROD-ELEVATOR Filed Nov. 12 1927 Patented Aug. 27, 1929.

UNITED STATES.

ORAN o. EEEDHAM, E FORT WORTH, TEXAS.

STICKER-ROD ELEvAToE.

Application filed November 12, 1927. Serial No. 232,793.

This invention relates to improvements in rod elevators, and particularly to a lifting device for sucker rods.

One object of the invention is to provide a simple and practical means forengaging a sucker rod or pipe in such fashion that the rod can not be accidentally released from the elevator while the same is being elevated. I

A further object of the invention is to provide the elevator with trunnions so located with respect to the rod receiving and holding passages that the rod may be quickly and easily placed in or removed from the elevator. More specifically, the present 0 invention contemplates an elevator having a central bore in which the rod is normally sustained, and means for passing the rod into said central bore simply by turning the elevator head on its trunnions, which are 1ournaled in an ordinary hfting bail.

\Vith these and other objects in view, the invention consists in certain novel details of construction and combinations and arrangements of parts, all as will hereinafter be 0 more fully described and the novel features thereof particularly pointed out in the appended claims.

In the accompanying drawings,

Figure 1 is an elevation of the present rod elevator, showing the application thereof to a sucker rod. 1

Fig. 2 is an elevational view of the device shown in Figure 1, this view being taken at right angles to Figure 1.

Fig. 3 illustrates the elevator head rocked on its trunnions 90, said head being shown in section, this being the position the parts occupy during the placing of a rod in the elevator.

Fig. 4 is a sectional view through the head, said head being shown in this instance in the position it occupies when a rod is suspended therefrom.

Fig. 5 is an inverted plan view of the elevator head.

Fig. 6 is a plan View thereof;'and

Fig. 7 is a view similar to Fig. 4, illustrating a modified form of head.

As it is preferred that it be possible to place the rod or pipe in the elevator head without tilting said head and its bail, the present elevator is so constructed as to permit the rod to be placed therein simply by rocking said head on the trunnions by which it is sustained in the ordinary bail.

In the present instance, the elevator head 1 has a receiving throat or slot 2, extending from one side thereof to a point where itintersects a central bore 4, in which the rod 8 2 is to be normally suspended, Extending in the'head, also extends to what is normally the bottom surface of the head.

The trunnions 6, for suspending the head from the bail 7, are located near what has been termed the upper surface of the head, and the throat receiving slot 2 is located entirely below said trunnions. As a result, by

turning the head 90 on its trunnions, to the position shown in Fig. 3, a rod may be passed laterally of the head through said throat 2, until it occupies the position shown in Fig. After the rod has assumed this position, the headis turned'back 90, to its original position (Fig. 4), the radial slots 3 and 5 readily permitting such turning movement until the rod 8 assumes the position in which it is normally supported in the elevator, as shown in Fig. 4.

For suspending the rod in the elevator, said rod may be provided with an enlargement'9, such an enlargement taking either the form of a head, as shown in Figure 1, or of a collar, as illustrated in Fig. 4.

As illustrated in the accompanying drawings, the slots 3 and 5 extend radially outward from the pointat which the inner end of rod receiving throat 2 intersects central bore 4, said slots opening on two opposite sides of the head, while the throat 2 is open at that side of the head which is located between those two sides 'to which said radial slots extend.

What I claim, is,

1. A rod elevator head having a central bore, a rod receiving throat extending transversely of and intersecting said bore, and radial passages extending from a point of intersection of said throat and bore to opposite sidesof said head.

2. A rod elevator head having a central bore a rod receiving throat extending transversely of and intersecting said bore, and

. at its opposite sides, a central radial passages extending from a point of intersection of said throat and bore to opposite sides of said head, said passages extending parallel to said bore and at right angles to said throat.

3. A rod elevator head havin trunnions at its opposite sides, a central bore, a rod receiving throat extending transversely of and intersecting said bore, and radial passages extending from the point of intersection of said throat and bore to opposite sides of the head, said head being rotatable about the axis of said trunnions to transfer a rod from said throat through said passages to said bore.

4. A rod elevator head havin trunnions bore, a rod receiving throat extending transversely-of said bore, said throat being located entirely to one side of said trunnions and intersecting said bore, and radial passages extending from the point of intersection of said bore and throat to opposite sides and opposite ends of said head. 7

5. A rod elevator head having a central bore extending therethrough with a rod receiving throat extending from one side to and intersecting said bore and radial passages extending from said bore at said point of intersection to two sides ofsaid head contiguous. to that side in which said throat is located.

6. A rod elevator head having a central bore extending theie'through with radial passages extending from said bore to opposite sides of the head and a rod receiving throat opening on a third side of said head tral bore.

8. A rod elevator head having a central bore, radial passages extending from said bore, a rod receiving throat intersecting said bore and passages and trunnions at opposite sides of said head located entirely to one side of said throat, said head being rotatable on said trunnions to pass a rod from, said throat through said passages into said central bore.

In testimony whereof, I set my hand, this 5th day of November, 1927. A

ORAN C. NEEDHAM.' 

